顺磁光子。垂直分量的缺失和大场中的衰减
The paramagnetic photon. Absence of perpendicular component and decay in large fields
摘要：
本文补充和讨论了作者以前关于微小光子与磁化的虚电子-正电子背景相互作用而产生的反常顺磁矩$μ_γ$的结果。有人认为，这样的磁矩，它不能是一个角动量的线性函数，并没有空间的存在，一个假设的垂直分量，最近在文献中声称。讨论了在超过第一阈值的区域中，光子可能以电子-正电子对的形式衰变，光子的磁矩不能独立于所产生的电子-正电子对的磁矩来定义。结果表明，当磁场足够大时，真空变得不稳定，并以电子-正电子对的形式衰变。
英文摘要：
Previous results from the authors concerning the arising a tiny photon anomalous paramagnetic moment $μ_γ$ due to its interaction with a magnetized virtual electron-positron background are complemented and discussed. It is argued that such magnetic moment it cannot be a linear function of the angular momentum and that there is no room for the existence of an hypothetical perpendicular component, as recently claimed in the literature. It is discussed that in the region beyond the first threshold, where photons may decay in electron-positron pairs, the photon magnetic moment cannot be defined independently of the magnetic moment of the created pairs. It is shown that for magnetic fields large enough, the vacuum becomes unstable and decays also in electron-positron pairs.
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